LB1 High Performance New Battery for Asus Series: N50, N50A, N50E, N50F, N50T, N50V, N50VN, N51, N51A, N51S, N51T, N51V Part #: A32-N50, A33-N50, 90-NQY1B1000Y, 90-NQY1B2000Y Laptop Notebook Computer PC [6-Cell 11.1V] 18 Months Warranty